In "The Death and Life of the Great Lakes," journalist Dan Egan crafts a cautious yet hopeful narrative using history, reporting, and his own experiences to highlight the threats posed to the world's largest freshwater system.

An invasive species known as tiger shrimp have been spotted in the Gulf of Mexico over the last six years. Charlie Whinham talks with shrimpers and researchers about how these huge shrimp could cause big problems for Louisiana’s multi-billion dollar…